PSPrinterJob.java 文件源码

/**
 * Examine the metrics captured by the
 * <code>PeekGraphics</code> instance and
 * if capable of directly converting this
 * print job to the printer's control language
 * or the native OS's graphics primitives, then
 * return a <code>PSPathGraphics</code> to perform
 * that conversion. If there is not an object
 * capable of the conversion then return
 * <code>null</code>. Returning <code>null</code>
 * causes the print job to be rasterized.
 */

protected Graphics2D createPathGraphics(PeekGraphics peekGraphics,
                                        PrinterJob printerJob,
                                        Printable painter,
                                        PageFormat pageFormat,
                                        int pageIndex) {

    PSPathGraphics pathGraphics;
    PeekMetrics metrics = peekGraphics.getMetrics();

    /* If the application has drawn anything that
     * out PathGraphics class can not handle then
     * return a null PathGraphics.
     */
    if (forcePDL == false && (forceRaster == true
                    || metrics.hasNonSolidColors()
                    || metrics.hasCompositing())) {

        pathGraphics = null;
    } else {

        BufferedImage bufferedImage = new BufferedImage(8, 8,
                                        BufferedImage.TYPE_INT_RGB);
        Graphics2D bufferedGraphics = bufferedImage.createGraphics();
        boolean canRedraw = peekGraphics.getAWTDrawingOnly() == false;

        pathGraphics =  new PSPathGraphics(bufferedGraphics, printerJob,
                                           painter, pageFormat, pageIndex,
                                           canRedraw);
    }

    return pathGraphics;
}